immersive-web / front-facing-camera Goto Github PK

I understand the rationale to separate this out from a potential "face-tracking" feature.

The explainer links to the ARCore documentation for the facing mode, but this comes along with very different behaviour in terms of tracking, plane detection, hit testing, etc. Effectively the only thing that ARCore can do in front-facing mode is face tracking, as documented here:

When the front camera is selected, ARCore's behavior changes in the following ways:

• [...]
• Camera.getTrackingState() will always return TrackingState.PAUSED.
• All forms of Frame.hitTest() will always return an empty list.
• Camera.getDisplayOrientedPose() will always return an identity pose.
• Session.createAnchor(Pose) will always throw NotTrackingException.
• Planes will never be detected.

Perhaps you're aware of upcoming changes to these limitations @bialpio but it seems to me like there would be no benefit for a WebXR front-facing camera mode on android vs getUserMedia. Indeed, it would inherit all of the general downsides of WebXR for smartphones that I discussed at length in immersive-web/webxr-ar-module#77.